Jeep bulletin 1400623
What it saysFuel Tank and Fuel Delivery Module Replacement Customers may experience the following: ? NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Jul 29, 2023, received Sep 25, 2023, about the fuel/propulsion system. It names 1 model year (2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationFuel Tank and Fuel Delivery Module Replacement Customers may experience the following: ? Fuel gage reading incorrectly at 7/8 full after refueling. This bulletin involves replacing the fuel tank and possibly the fuel delivery module.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 1400623 | Service bulletin | Jul 29, 2023 | 10242838 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 57 complaints with NHTSA since 2015. 23 of them name Electrical System, Fuel/Propulsion System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
This Jeep gladiator has not started on several occasions. And is now stuck in our driveway not turning over the engine. This apparently is a known problem and has stranded my family. Has Also stopped all the electrical with the engine driving down the road when my husband was returning from work, this is a safety issue please respond
2023 Jeep Gladiator · Electrical System · filed with NHTSA Jul 19, 2024 · ODI 11603396
I was turning a corner and as soon as I made the turn, the truck completely stalled. Lights were on and the screen was prompting me to step on the brake and press start even though the gear was on Drive. The gear wouldn't shift to neutral to at least remove the car from the busy street.
2023 Jeep Gladiator · Fuel/Propulsion System · filed with NHTSA Aug 15, 2024 · ODI 11608632
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the fuel/propulsion system
Source: same model, same component group8 other manufacturer communications filed against the Jeep Gladiator under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 9100833 REV1 | Service bulletin | Jul 6, 2026 | Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and driv… |
| 9100833 | Service bulletin | Jun 17, 2026 | Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and driv… |
| 14-010-25 REV. A | Service bulletin | Jun 24, 2025 | Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as di… |
| 105038 | Service bulletin | May 15, 2025 | TUBE - FUEL INJECTOR SUPPLY & GASKET - NONE |
| 105039 | Service bulletin | May 14, 2025 | TUBE - FUEL INJECTOR SUPPLY & GASKET - NONE |
| 9100470 | Service bulletin | Jan 17, 2025 | FUEL VAPOR CANISTER FILTER EVAP Fuel Filters are to be checked for restriction / blockage on a regular schedule. If the Filter is restricted… |
| 14-009-24 | Service bulletin | Nov 21, 2024 | "Fuel Filler Hose Not Fully Seated There are no Customer Symptoms for this issue. NOTE: Technicians may observe that the fuel filler hose is… |
| 25-002-24 REV. A | Service bulletin | Jul 9, 2024 | "Malfunction Indicator Light (MIL) Due To Possible Faulty O2 Sensor **Customers must experience a Malfunction Indicator Lamp (MIL) illuminat… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep 1400623 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 1400623 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Stellantis warranty extension on file lists the ones Stellantis has filed.
Which vehicles does 1400623 cover?
The manufacturer filed it against 1 model year: 2023 Jeep Gladiator. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.